Colorful anthias (Luzonichthys waitei) swarm over a healthy coral reef in Papua New Guinea. We saw huge schools of this species congregating when the currents picked up. The fish would swim up current close to the reef in multiple "streams" that looked like "super highways", then rise up several feet, disperse in the water column, feed with current for 10-30 feet and then drop down into the flow of "traffic" to repeat the cycle over again. An incredible sight!

Anthias swarm over a colorful soft coral reef.

Anthias swarm around gorgonian on a reef in Eastern Fields, PNG.

Anthias swarm around gorgonian on a reef in Eastern Fields, PNG.

Colorful anthias (Luzonichthys waitei) swarm over a healthy coral reef in Papua New Guinea. We saw huge schools of this species congregating when the currents picked up. The fish would swim up current close to the reef in multiple "streams" that looked like "super highways", then rise up several feet, disperse in the water column, feed with current for 10-30 feet and then drop down into the flow of "traffic" to repeat the cycle over again. An incredible sight!

Colorful anthias swarm over a healthy coral reef in Papua New Guinea.

Colorful anthias (Luzonichthys waitei) swarm over a healthy coral reef in Papua New Guinea. We saw huge schools of this species congregating when the currents picked up. The fish would swim up current close to the reef in multiple "streams" that looked like "super highways", then rise up several feet, disperse in the water column, feed with current for 10-30 feet and then drop down into the flow of "traffic" to repeat the cycle over again. An incredible sight!

Sea whip gorgonian reef scene.

A plane wreck in shallow waters of Exuma, Bahamas.

White sand, turqoise water and a rippled surface. Tranquility in the Bahamas.

In Florida artificial reefs made from old tires often fail to develop life and even damage nearby reefs during storms. But in the highly productive waters off Bali, even old tires develop into thriving ecosystems.